English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Nanophotonics has emerged as a powerful tool for manipulating light on chips.Almost all of today's devices, however, have been designed using slow andineffective brute-force search methods, leading in many cases to limited deviceperformance. In this article, we provide a complete demonstration of ourrecently proposed inverse design technique, wherein the user specifies designconstraints in the form of target fields rather than a dielectric constantprofile, and in particular we use this method to demonstrate a newdemultiplexing grating. The novel grating, which has not been developed usingconventional techniques, accepts a vertical-incident Gaussian beam from afree-space and separates O-band $(1300\mathrm{nm})$ and C-band$(1550\mathrm{nm})$ light into separate waveguides. This inverse design conceptis simple and extendable to a broad class of highly compact devices includingfrequency splitters, mode converters, and spatial mode multiplexers.

Inverse design and implementation of a wavelength demultiplexing grating coupler